US4236725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamic device for holding the foot and the leg in position in a rigid structure
Assignee: Individual
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Filing: 1978-10-23
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Granted: 1980-12-02
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Expires: 1998-10-23
Abstract
Abstract A dynamic device for holding the foot and the leg in position in a rigid structure consisting of shells or fastening elements, wherein there is at least a pump operated by the motions of the leg which is associated with at least an element for adjusting the pressure, with at least a valve and an assembly of fluid-chocks, the whole participating to the immobilization of the foot and the leg in the rigid structure.
Inventors
- 👤 Jean-Roger Bataille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:44
CPC Classifications
A; A43; A43B; A43B5/00; A43B5/04; A43B5/0405; A43B5/0407
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
141 words
A device for fixing the foot and the leg to a utilization member, comprising; a base member detachably connected to the utilization member, framework means extending from the base member and adapted to receive the person's foot, expandable chock means mounted to the interior of the framework to engage and clamp the foot, and pump means carried by the framework and in communication with the chock means to cause expansion of the chock means, said pump means comprising a feeler member at the top of the framework adapted for engagement with the leg above the foot and supported to receive leg forces in a direction substantially parallel to the base member, the motions of the leg onto the feeler member operating the pump means to expand the chock means for fixing the foot and the leg in position within the framework.
Claim 2
Independent Claim
141 words
A device for fixing the foot and the leg to a utilization member, comprising; a base member detachably connected to the utilization member, framework means extending from the base member and adapted to receive the person's foot, expandable chock means mounted to the interior of the framework to engage and clamp the foot, and pump means carried by the framework and in communication with the chock means to cause expansion of the chock means, said pump means comprising a feeler member at the top of the framework adapted for engagement with the leg above the foot and supported to receive leg forces in a direction substantially parallel to the base member, the motions of the leg onto the feeler member operating the pump means to expand the chock means for fixing the foot and the leg in position within the framework.
Claim 3
Dependent Claim
43 words
A device as set forth in claim 1 wherein the feeler member comprises a spring blade defining a gap for receiving at least a portion of the pump means wherein the spring blade, through the thrust of the leg, operates the pump means.
Claim 4
Dependent Claim
29 words
A device as set forth in claim 2 wherein the pump means includes a flexible pocket member forming the body of the pump means and disposed in the gap.
Claim 5
Dependent Claim
41 words
A device as set forth in claim 3 wherein the framework includes a rigid form which defines the other side of the gap so that upon urging of the spring blade the flexible pocket member is compressed against the rigid form.
Claim 6
Dependent Claim
20 words
A device as set forth in claim 4 wherein the spring blade and rigid form are integral with the framework.
Claim 7
Dependent Claim
27 words
A device as set forth in claim 5 wherein the spring blade and rigid form define a bifurcated extension of the framework forming the gap between them.
Claim 8
Dependent Claim
21 words
A device as set forth in claim 2 wherein the blade and pump means are contiguous as to their contact surfaces.
Claim 9
Dependent Claim
21 words
A device as set forth in claim 1 wherein the pump means is exclusively actuated by the motion of the leg.
Claim 10
Dependent Claim
21 words
A device as set forth in claim 1 including a reservoir and means coupling fluid intermediate the reservoir and pump means.
Claim 11
Dependent Claim
20 words
A device as set forth in claim 1 including control means for air flow intermediate the pump means and atmosphere.
Claim 12
Dependent Claim
15 words
A device as set forth in claim 1 wherein the pump means is fluid operated.
Claim 13
Dependent Claim
21 words
A device as set forth in claim 1 wherein the pump means is supported at a front surface of the leg.
Claim 14
Dependent Claim
31 words
A device as set forth in claim 1 including valve means disposed intermediate the pump means and chock means to control pressure applied to the chock means by the pump means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |